[media] tm6000: Add support for Terratec Grabster AV 150/250 MX
[media] tm6000: Add support for Terratec Grabster AV 150/250 MX

This patch adds support for Terratec Grabster AV 150/250 MX. For now it is
only possible to use composite input as switching inputs does not work.

[ad86ba2154032c9f55743a190faa2459a9d61d42@redhat.com: Fix merge conflicts and simplify board entries]
Signed-off-by: Holger Nelson <550e76cead69bd8055f863547d24de727459c731@hnelson.de>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas